Heavy metal uptake during anaerobic digestion of combined electroplating and brewery wastewaters |
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Authors: | Stewart C. Green Alan R. Howgrave-Graham Solly Mlondobozi |
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Affiliation: | (1) Department of Microbiology and Plant Pathology, University of Natal, Private Bag X01, Scottsville Pietermaritzburg, South-Africa |
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Abstract: | Batch and continuous culture laboratory-scale experiments were conducted to quantify the effect of combining chrome and nickel electroplating effluent (EE) and brewery effluent as substrate for established anaerobic digester granules. EE at a 1:12 ratio in brewery effluent was inhibitory to anaerobic digestion but acclimation at a 1:24 ratio occurred during continuous culture experiments. At least 90% of the chromium and nickel was absorbed by the granules with nickel attaching to granule perimeters while chromium penetrated into deeper recesses. © Rapid Science Ltd. 1998 |
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Keywords: | Anaerobic digestion electroplating effluent nickel chromium brewery effluent |
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